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有效的传感器放置能改善网络覆盖、减小网络中的通讯量,是传感器组网过程中必须解决的关键问题。研究和分析了不同网格结构的性能,建立了用于传感器放置的地形模型,提出了一种基于矢量地图数据的传感器放置算法。算法以优化传感器数目为目标,将传感器放置在能带来最大有效变化的网格节点上。仿真实际表明,与现有传感器放置算法相比,算法具有更高的效率。
Effective sensor placement can improve network coverage and reduce the amount of traffic in the network, which is a key issue that must be solved in the process of sensor networking. The performance of different grid structures was studied and analyzed. A terrain model for sensor placement was established. A sensor placement algorithm based on vector map data was proposed. The algorithm aims at optimizing the number of sensors, placing the sensor on the grid nodes that bring about the most effective change. Simulation shows that the algorithm has higher efficiency than the existing sensor placement algorithm.